Presenting final ideas to a client.
Make sure there is a wide selection for them to choose them, it means you have a higher chance the client will settle on a favourite and it also means you don't have to return to the drawing board disappointed. Remember clients can be extremely picky. Refine your work... there's a difference between finished and refined, it shows you are willing to go that bit extra to make sure it looks as good as possible. It will fall to you to chase up printers, photographers (if necessary) and other assets that are needed or take part in the process.